PT-2021-4099 · Unknown+1 · Cyrus Imap+1

Published 2021-05-05 · Updated 2025-05-06 · CVE-2021-32056

Positive Technologies (AI Summary)

CVSS v3.1

4.3

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Name of the Vulnerable Software and Affected Versions Cyrus IMAP versions 3.2.7 and earlier, 3.3.x, and 3.4.x before 3.4.1

Description The issue allows remote authenticated users to bypass intended access restrictions on server annotations, which can cause replication to stall. This is related to incorrect permission assignment for a critical resource. Exploitation of the issue may allow a remote attacker to cause a denial of service.

Recommendations For Cyrus IMAP versions 3.2.7 and earlier, update to version 3.2.7 or later. For Cyrus IMAP version 3.3.x, update to version 3.4.1 or later. For Cyrus IMAP version 3.4.x before 3.4.1, update to version 3.4.1 or later.

Fix

Incorrect Permission

Weakness Enumeration

CWE-732

Related Identifiers

ALT-PU-2021-1975

ALT-PU-2021-1979

ALT-PU-2025-6164

BDU:2021-04683

CVE-2021-32056

Affected Products

Alt Linux

Cyrus Imap

References · 17

• https://osv.dev/vulnerability/DEBIAN-CVE-2021-32056 · Vendor Advisory
• https://cyrus.topicbox.com/groups/announce/T056901c106ecfce3/cyrus-imap-3-4-1-released · Vendor Advisory
• https://cyrusimap.org/imap/download/release-notes/3.2/x/3.2.7.html · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6HEO3RURJW6NLIXS7NK5PVU6MGHC4SCM · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WJZB45QBUN7CZFGOWCZYUYACNBTX7LVS · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-32056 · Security Note
• https://bdu.fstec.ru/vul/2021-04683 · Security Note
• https://osv.dev/vulnerability/CVE-2021-32056 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2021-32056 · Vendor Advisory
• https://cyrus.topicbox.com/groups/announce/T126392718bc29d6b/cyrus-imap-3-2-7-released · Vendor Advisory
• https://cyrusimap.org/imap/download/release-notes/3.4/x/3.4.1.html · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-32056 · Security Note
• https://ubuntu.com/security/CVE-2021-32056 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-32056 · Vendor Advisory
• https://github.com/cyrusimap/cyrus-imapd/commit/621f9e41465b521399f691c241181300fab55995 · Note